This patch fixes the following compiler warning:
xmm/mm-modem-helpers-xmm.c:388:38: error: implicitly declaring library function 'strlen' with type 'unsigned long (const char *)' [-Werror,-Wimplicit-function-declaration]
g_regex_match_full (r, response, strlen (response), 0, 0, &match_info, &inner_error);
^
7c5cfa13a1